Cleaner F3 Express Aerosol 400ml

Heating water treatment: Cleaning and protecting central heating systems

• Removes deposits, rust sludge, limescale, boiler scale and flux residues
• Prevention of corrosion, sludge buildup, limescale, blocked valves and stuck pumps
• Meets the requirements of VDI 2035, ÖNorm, Swissnorm, kiwa, DWTA
• The products in the Fernox range are environmentally friendly, as they are non-toxic, acid-free and non-foaming, as well as phosphate, nitrate and EDTA-free.
• Suitable for all hot water heating systems, including condensing boilers, heat pumps, solar thermal systems, underfloor heating and heat exchangers – ideal for combi boilers
• Compatible with all materials commonly used in heating systems, steel, copper, aluminum, stainless steel, plastics and sealing materials.

Easy to use:

• Draining heating water from an old system
• Fill the heating system with fresh water and cleaner F3 / F5
• Start up the system with heat generator
• New system: 124-hour circulation
• Existing system: 414 days of circulation
• Underfloor heating: 414 days of circulation
• Flushing the heating system
• Test with conductivity meter TDSMeter (91 115 18)
• Add corrosion inhibitor F1 / Alphi11 to the fresh filling water.
• Check concentration with the test kit (91 115 14).
• Stick on the service label – done!

• For all types of heating systems
• Non-acidic, no neutralizing agent required
• Removes rust sludge and magnetite, limescale, flux residues and other dirt.
• For new and old central heating systems
• Ideal for combination boilers